Research Aluminium-ion battery

1 research

1.1 university of maryland
1.2 oak ridge national laboratory
1.3 cornell university
1.4 stanford university
1.5 alion project

research

various research teams experimenting aluminium , other chemical compounds produce efficient long lasting , safe battery.

university of maryland

in 2016, university of maryland team reported rechargeable aluminium/sulfur battery utilizes sulfur/carbon composite cathode material. chemistry able provide 1340 wh/kg energy density in theory. team made prototype cell demonstrated energy density of 800 wh/kg on 20 cycles.

oak ridge national laboratory

around 2010 oak ridge national laboratory (ornl) developed , patented high energy density device, producing 1,060 wh/kg versus 406 wh/kg lithium-ion batteries. ornl used ionic electrolyte, instead of typical aqueous electrolyte can produce hydrogen gas during operation , corrode aluminium anode. electrolyte made of 3-ethyl-1-methylimidazolium chloride excess aluminium trichloride. however, ionic electrolytes less conductive, reducing power density. reducing anode/cathode separation can offset limited conductivity, causes heating. ornl devised cathode made of spinel manganese oxide further reducing corrosion.

cornell university

in 2011 @ cornell university, research team used same electrolyte ornl, used vanadium oxide nanowires cathode. vanadium oxide displays open crystal structure, allowing greater surface area aluminium structure , reduces path between cathode , anode, maximizing energy output levels. device produced large output voltage during operation. however, battery had low coulombic efficiency.

stanford university

in april 2015 researchers @ stanford university claimed have developed aluminum-ion battery recharge time of 1 minute (for unspecified battery capacity). claimed battery has no possibility of catching fire, offering video of hole being drilled battery while generating electricity. claim battery inexpensive. cell provides 2 volts. connecting 2 cells in series circuit provide 4 volts. prototype lasted on 7,500 charge-discharge cycles no loss of capacity.

alion project

in june 2015 european horizon 2020 research project on aluminium-ion batteries launched @ technological research center leitat. project aims @ developing prototype of various european industries , research institutes. project entitled high specific energy aluminium-ion rechargeable batteries decentralized electricity generation sources, or alion short, pursues integral approach comprising electroactive materials based on “rocking chair” mechanism, robust ionic liquid-based electrolytes novel cell , battery concepts, resulting in technology lower cost, improved performance, safety , reliability respect current energy storage solutions (e.g. pumped hydro storage, compressed air energy storage, li-ion battery, redox flow battery etc.). project covers whole value chain materials , component manufacturers, battery assembler, until technology validation in specific electric microgrid system including renewable energy source (i.e. mini wind turbine, photovoltaic system, etc.). thus, final objective of project obtain al-ion battery module validated in relevant environment, specific energy of 400 wh/kg, voltage of 48 v , cycle life of 3000 cycles.